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What Tree Service License and Insurance Details Should Be on Your Website?
Short answer: A tree service should show the license or registration its state or city requires, with the number, in the footer and about page. Say you carry liability insurance and workers' compensation, and offer a certificate on request. Show ISA credentials separately, by name. If your state has no tree license, say so and lead with insurance, credentials and reviews.
- There is no national arborist license; rules differ by state, and some states only register tree companies.
- Maryland, Louisiana and Connecticut require a state license for tree work; Minnesota requires company registration.
- An ISA Certified Arborist credential is voluntary and is not a license; show them on separate lines.
- Put the license number in the footer of every page, as plain text, not only a badge image.
- Offer a certificate of insurance on request; do not post the policy itself.
A tree service license is permission from a state or local agency to do tree work for pay. Some states have one, some have a registry instead, and many have no tree-specific rule at all. That is why a single "licensed and insured" badge on every site does not work. The right line depends on where you work.
This guide explains how the rules differ, how a license is earned, and what to write on the page.
Do tree services need a license?
It depends on the state, and sometimes on the town. Here are examples straight from official state pages. Each one is a different model.
| State | What the state page says | Agency |
|---|---|---|
| Maryland | A person may not do the work or business of a tree expert without a license from the Department. An employee under a licensed expert's supervision may not be required to have a license in their own name | Department of Natural Resources |
| Louisiana | An Arborist License is needed to make recommendations or do tree work for a fee, including removal, pruning, trimming, cabling, fertilization and cavity work | Department of Agriculture and Forestry |
| Connecticut | Anyone who advertises, solicits or contracts to do arboriculture needs a commercial arborist license (category 3D), and the business must register | DEEP |
| New Jersey | A business that provides tree care for hire must be registered with the Board of Tree Experts and employ at least one full-time licensed tree expert or tree care operator, depending on the services offered | Board of Tree Experts |
| Minnesota | The page lists no state arborist license, but tree care companies doing business in the state must register with the Department of Agriculture | Department of Agriculture |
| California | A C-49 Tree and Palm Contractor classification covers planting, maintaining and removing trees and palms, including pruning and stump grinding | Contractors State License Board |
Read the table as a sample, not a full list. Other states have no tree license at all, and some leave it to cities. We have a page for Maryland, Connecticut and other states on this site. For any other state, go to your state's licensing agency or ask your city or county.
Two more points matter for tree work in particular.
Pesticide rules can apply. Connecticut's license also makes the holder a supervisory pesticide applicator for tree treatments, covering fungicides, insecticides, miticides and tree growth regulators on fruit, shade and ornamental trees (Connecticut DEEP). Minnesota requires a pesticide applicator license only when a company applies restricted-use pesticides, such as for emerald ash borer (Minnesota Department of Agriculture). If you spray or inject trees, check your state's pesticide agency.
Cities may add their own rules. Minnesota's page lists a local license among things a company may need (Minnesota Department of Agriculture). Check the cities where you work most.
How do you get an arborist license?
There is no national arborist license. The steps depend on the state. Here is the general path, with real examples.
How to get a tree service license, step by step
1. Find out if your state or town requires one
Search your state name with "tree expert license" or "arborist license," then confirm on an official .gov page. Ask your city or county clerk about local licenses. Do not rely on a blog post.
2. Read what the exam and the application ask for
The exams differ a lot. In Connecticut, the written test is multiple choice, followed by an oral exam on a separate day. The oral exam has a tree identification part, where 80 percent is needed to continue, and a practical part of ten conversational questions covering topics such as safety, cabling and bracing, tree physiology and pesticides (Connecticut DEEP). In Louisiana, the state lists a $150 exam fee, a $125 initial license fee and a $125 annual renewal (Louisiana Department of Agriculture and Forestry).
3. Line up insurance
Several states tie the license to insurance. Louisiana asks for proof of current and sufficient general liability and workers' compensation insurance, where applicable. Maryland says licensees must carry and show proof of liability and property damage insurance for the full term of the license (Maryland DNR).
4. Register the business, if your state asks
Connecticut has required arborist businesses to register since October 1, 2013. New Jersey requires registration with its Board of Tree Experts and at least one full-time licensed person on staff. Minnesota requires registration with its Department of Agriculture.
5. Keep it current
Licenses expire. Louisiana's renewal is annual. Put the date on a calendar and take the claim off your website the day it lapses.
An ISA Certified Arborist credential is not a substitute for any of this. It is a voluntary credential, and Connecticut's page does not say it counts toward the state license. See how to show ISA certification on your website.
What insurance do tree services carry?
A tree company works with chainsaws, ropes, bucket trucks and big falling loads, near houses and power lines. So customers ask about insurance more than in most trades.
Two kinds come up most:
- General liability insurance. It covers damage to a customer's property or injury to other people caused by your work. Minnesota's Department of Agriculture says that if a contractor lacks coverage and an accident happens on your property, you could be liable for damages the contractor incurs (Minnesota Department of Agriculture).
- Workers' compensation. It covers injuries to your crew. Minnesota's checklist says sole proprietorships are exempt, and that a company pruning or trimming trees 12 feet or more above the ground must carry classification 0106.
New Jersey's board tells consumers to confirm a company is "fully insured in case an accident happens" (NJ Board of Tree Experts). That tells you what homeowners are being told to ask.
We do not give amounts. They vary by state, by policy and by the client. Ask your insurance agent what limits fit tree work where you operate, and say so in plain words on your site.
What to show on your website
Think about the three questions a homeowner asks before calling: Are you allowed to do this? Will you pay if something goes wrong? Do you know trees?
Put the license line in the footer of every page
If your state has a license or registration, show it with the number:
Licensed Tree Expert, Maryland DNR license no. [number]
If the state has a registry and not a license, use the right word:
Registered with the Minnesota Department of Agriculture Tree Care Registry.
Use the exact name of the thing you hold. Maryland's page warns against false or misleading advertising, including misrepresenting a licensing status (Maryland DNR). Maryland also says a licensed tree expert's written contract must show the license number, so keep it ready for your paperwork as well.
Give insurance its own short section
One paragraph on the home page or about page works well:
We carry general liability and workers' compensation insurance. Ask us for a certificate of insurance before the job and we will send it the same day.
Only write this if it is true and you can deliver it. Do not post the policy itself with policy numbers and limits on the open web. A certificate sent on request is enough.
Show credentials in their own lines
Write credentials separately from licenses:
- "ISA Certified Arborist: [name]" (see our guide on this)
- "TRAQ-qualified: [name]," if true
Do not merge them into "licensed, insured and certified." That sentence says nothing, and a homeowner or an AI tool cannot check it.
What to do if your state has no tree license
Say so honestly, and lead with what you do have:
Our state does not license tree companies, so we hold ourselves to a high standard. We carry liability and workers' compensation insurance, and our crew leader is an ISA Certified Arborist.
Only keep the credential line if one of you has it. A short, honest page often beats a pile of badges. Pair it with real reviews from customers. See review request texts for tree services.
Make the facts easy for AI tools to quote
Write the license and insurance lines as plain text, not inside an image. A sentence such as "Licensed Tree Expert in Maryland, license number 1234" is easy to read for Google and for tools like ChatGPT. Our guide on getting your tree service on ChatGPT shows what else those tools look at. The hub guide on how people tell if a contractor is legit shows what homeowners check first.
Mistakes to avoid
- Claiming a license you do not hold. It is misleading, and states warn against it.
- Calling an ISA credential a license. They are different.
- Saying "fully insured" with nothing behind it. Offer a certificate.
- Leaving an expired license on the page. Check dates every quarter.
- Copying another state's wording. Use your own agency's exact name for your license.
- Showing only a badge image. Add the text and the number.
Common questions
Do I need a license to cut down trees?
In some states, yes, and in others no. Maryland requires a state license to do the work or business of a tree expert, Louisiana requires one for tree work for a fee, and Connecticut requires one for anyone advertising or contracting to do arboriculture on fruit, shade or ornamental trees. Other states, such as Minnesota, use registration. Check your own state agency.
Is an ISA Certified Arborist the same as a licensed arborist?
No. ISA certification is a voluntary credential from the International Society of Arboriculture. A license comes from a state or local agency. Show them on separate lines.
Should I put my insurance policy on my website?
Do not post the policy. Say that you carry liability and workers' compensation insurance and that you give a certificate on request. That answers the question and keeps the details private.
What if I am a one-person tree service with no employees?
Rules for workers' compensation often treat sole proprietors differently. Minnesota, for instance, exempts sole proprietorships from its workers' compensation requirement. Check your state, and still say what coverage you have, including liability.
Where do I put the license number?
Put it in the footer of every page and on your about page. If your state requires it on contracts, as Maryland does, put it there too.
Get the license line in the right place
If you want your license, insurance and credentials set up on a clean page, you can see a free demo site built for tree services.
Sources
- Maryland Department of Natural Resources: Licensed Tree Expert (2026)
- Louisiana Department of Agriculture and Forestry: Arborists (2026)
- Connecticut DEEP: Commercial Arborist License (2026)
- New Jersey State Board of Tree Experts (2026)
- Minnesota Department of Agriculture: Checklist for Hiring a Tree Care Company (2026)
- California Contractors State License Board: C-49 Tree and Palm Contractor (2026)
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